April 2009 samples from Adams Cty Plant Diagnostic Lab

I'm going to start posting this list once a month. No pictures, just text so you know at a glance what problems we're seeing in the industry:

Host->Problem diagnosis
Bigflower Coreopsis -> Tomato Spotted Wilt Virus (TSWV)
Butterfly bush -> Environmental stress (undetermined-possible high salt level)
Calibracoa (Million Bells) ->Tobacco Mosaic Virus (TMV)
Gerber Daisy->Tobacco Mosaic Virus (TMV)
Osteospermum->Environmental stress (undetermined)
Pepper transplants -> Pythium root rot
Pepper transplants ->Tobacco Mosaic Virus (TMV)
Petunia->Tobacco Mosaic Virus (TMV)
Tomato transplants -> Environmental stress (High soil pH and salts)
Tomato transplants ->Environmental stress (undetermined-possible phytotoxicity)

Free Phytophthora online course

Are you interested in learning more about the disease Phytophthora and how it can affect your nursery?
Oregon State University and the Oregon Department of Agriculture have developed a FREE online course to help you identify and manage Phytophthora diseases in nurseries. This FREE course is also now offered in Spanish! The course is divided into three modules which take 60-90 mins each to complete.

If you're interested in receiving certification, OSU offers a Certificate of Mastery on Phytophthora from Oregon State University Extended Campus ($100 charge and online exam). But the information contained in the course is offered FREE! This is a great resource for nursery growers and I encourage you to check it out!

What's your plant's problem?

Did you know that most U.S. states have a clinic that will diagnose your sick plant for a small fee? The American Phytopathological Society maintains a list of all university clinics. Click here to find one in your state!